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Lemon Poppy Seed Mug Cake in mug with lemon zest topping

Lemon Poppy Seed Mug Cake

A moist and aromatic Lemon Poppy Seed Mug Cake made with lemon zest, soy milk, and poppy seeds a bright, vegan treat ready in just one minute.

  • Total Time: 5 minutes
  • Yield: 1 mug cake

Ingredients

For the lemon drizzle:
30 g powdered sugar
2 teaspoons soy milk
1 teaspoon fresh lemon juice

For the mug cake batter:
4 tablespoons all-purpose flour
2.5 tablespoons granulated sugar
0.5 teaspoon baking powder
0.5 teaspoon poppy seeds
4 tablespoons soy milk
1 tablespoon vegetable oil
0.5 teaspoon fresh lemon juice
1 teaspoon lemon zest

Instructions

Add powdered sugar to a small bowl. Mix in soy milk and lemon juice until a smooth glaze forms. Set aside.
In a large ramekin or microwave-safe mug, combine flour, sugar, baking powder, and poppy seeds.
Add soy milk, vegetable oil, lemon juice, and lemon zest.
Fold gently until the batter is just combined — do not overmix.
Microwave for 70–80 seconds on high, checking after 1 minute as microwaves vary.
Let it rest for 1 minute before adding the drizzle.
Pour the lemon glaze over the cake and enjoy your warm, soft, and zesty Lemon Poppy Seed Mug Cake.

Notes

Do not overmix the batter, as it may make the cake dense.
Always use a microwave-safe mug with no metal parts.
The cake will continue to cook slightly after microwaving, so allow it to rest before serving.
Add more lemon glaze for extra citrus flavor, or top with a spoon of vegan yogurt for creaminess.
If you enjoy lemon desserts, try my Lemon Mug Cake or Lemon Mug Cake Without Lemon Zest for easy variations.

  • Author: Rita
  • Prep Time: 4 minutes
  • Cook Time: 1 minute
  • Category: Fruit-Filled Mug Cakes
  • Method: Microwave
  • Cuisine: American
  • Diet: Vegan